Genetic diversity of core vs. peripheral Norway spruce native populations at a local scale in Slovenia

We investigated the levels of genetic diversity and population differentiation among core and peripheral populations of Norway spruce along an altitudinal gradient (from inversions to upper tree line) using isoenzymes (ISO) and nuclear simple-sequence repeats (SSR) markers on overlapping set of popu...

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Bibliographic Details
Published in:IForest (Viterbo) 2018-02, Vol.11 (1), p.104-110
Main Authors: Westergren, M, Bozic, G, Kraigher, H
Format: Article
Language:English
Subjects:
Algorithms
Central Peripheral Hypothesis
Datasets
Differentiation
Enzymes
Gene loci
Genetic Differentiation
Genetic Diversity
Hypotheses
Inversion
Inversions
Isoenzymes
Markers
Peripheral populations
Picea abies
Picea abies (L.) Karst
Pine trees
Population
Population differentiation
Population genetics
Populations
Software
Trees
Upper Tree Line
Vegetation
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Summary:We investigated the levels of genetic diversity and population differentiation among core and peripheral populations of Norway spruce along an altitudinal gradient (from inversions to upper tree line) using isoenzymes (ISO) and nuclear simple-sequence repeats (SSR) markers on overlapping set of populations. Twenty-seven to seventy trees from 11 and 7 populations were genotyped with isoenzymes and SSRs, respectively. The results partially conform to the expectations of the central-peripheral hypothesis (CPH) and are consistent for both marker sets. Genetic differentiation among peripheral populations was low but significantly different from zero (FST-ISO = 0.013, FST-SSR = 0.009) and higher than that among core populations (FST-ISO = 0.007, FST-SSR = 0.005), conforming to central peripheral hypothesis. Contrastingly, levels of genetic diversity assessed by both richness and equitability measures did not significantly differ between peripheral and core populations (AR-ISO = 2.20 vs. 2.14, AR-SSR = 17.16 vs. 17.68, HE-ISO = 0.183 vs. 0.185, and HE-SSR = 0.935 vs. 0.935 for peripheral and core populations, respectively).
ISSN:1971-7458
1971-7458
DOI:10.3832/ifor2444-011